Suddenly degrees aren't worth anything. Isn't that true? When I was a student, if you had a degree, you had a job. If you didn't have a job it's because you didn't want one. And I didn't want one, frankly.

It isn't what we don't know that gives us trouble, it's what we know that ain't so.

The first idea the child must acquire is that of the difference between good and evil.

The deepest sin against the human mind is to believe things without evidence.

If I could explain it to the average person, I wouldn't have been worth the Nobel Prize.

The more I read, the more I acquire, the more certain I am that I know nothing.

Investigate, educate and organize.

Any knowledge that doesn't lead to new questions quickly dies out: it fails to maintain the temperature required for sustaining life.

I learned very early the difference between knowing the name of something and knowing something.

Education is an ornament for the prosperous, a refuge for the unfortunate.

An investment in knowledge pays the best interest.

You can never be overdressed or overeducated.

Opinion is the medium between knowledge and ignorance.

Learning gives creativity, Creativity leads to thinking, Thinking provides knowledge, Knowledge makes you great.

No power and no treasure can outweigh the extension of our knowledge.

Medicine is my lawful wife and literature my mistress; when I get tired of one, I spend the night with the other.

I cannot live without books.

The only good is knowledge and the only evil is ignorance.

I cannot teach anybody anything. I can only make them think

Liberty without Learning is always in peril and Learning without Liberty is always in vain.

Knowledge is of two kinds. We know a subject ourselves, or we know where we can find information upon it.